<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音" />
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li class="search-item border-bottom" v-for="(item,key) in list" @click="handleCity(item.name)">{{item.name}}</li>
        <li class="search-item border-bottom" v-show="hasNoData">
          没有找到该城市
        </li>
      </ul>
    </div>
  </div>
</template>

<script>
import Bscroll from "better-scroll";
import { mapState,mapMutations } from 'vuex';

export default {
  props: {
    qList: Object
  },
  data() {
    return {
      keyword: "",
      list: [],
      timer: null
    };
  },
  computed:{
    hasNoData(){
      return !this.list.length
    }
  },
  watch: {
    keyword() {
      //函数节流问题  实时监听
      if (this.timer) {
        clearTimeout(this.timer);
      }
      this.timer = setTimeout(() => {
        const result = []
        if(!this.keyword){
          this.list=[]
          return
        }
        for (let i in this.qList) {
          this.qList[i].forEach(value => {
            //从name spell中搜索内容
            if (
              value.name.indexOf(this.keyword) > -1 ||
              value.spell.indexOf(this.keyword) > -1
            ) {
              result.push(value);
            }
          });
        }
        this.list = result;
      },100);
    }
  },
  mounted() {
    //实现内容滚动
    this.scroll = new Bscroll(this.$refs.search);
  },
   methods:{
    handleCity(city){
      // alert(city)
      // this.$store.dispatch("changCity",city)
      // this.$store.commit("changCityVal",city)
      this.changCityVal(city);
      this.$router.push("/")
    },
    ...mapMutations(['changCityVal'])
  }
};
</script>

<style lang="stylus" scoped>
@import '~styles/varibles.styl'

.search
  height: 0.72rem
  padding: 0 0.1rem
  background: $bgColor

  .search-input
    box-sizing: border-box
    width: 100%
    height: 0.62rem
    padding: 0 0.1rem
    line-height: 0.62rem
    text-align: center
    border-radius: 0.06rem
    color: #666

.search-content
  overflow: hidden
  position: absolute
  top: 1.58rem
  left: 0
  right: 0
  bottom: 0
  background: #fff
  z-index: 1

  .search-item
    line-height: 0.62rem
    padding-left: 0.2rem
    background: #fff
    color: #666
</style>